Shure BLX2/SM58

Working Range: 91 m (300 ft) Line of Sight
Audio Frequency Response 50 to 15,000 Hz (Dependent on microphone type)
Total Harmonic Distortion: 0.5%, typical
Ref. ±33 kHz deviation with 1 kHz tone
Dynamic Range: 100 dB, A-weighted, typical
Operating Temperature: -18°C to 57°C
Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of lowimpedance output) and the tip of the high impedance 1/4-inch output.

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